protect for in loops with hasOwnProperty

lib/OpenLayers/Layer/HTTPRequest.js

@@ -218,8 +218,10 @@ OpenLayers.Layer.HTTPRequest = OpenLayers.Class(OpenLayers.Layer, {
         var urlParams = 
             OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));
         for(var key in allParams) {
-            if(key.toUpperCase() in urlParams) {
-                delete allParams[key];
+            if (allParams.hasOwnProperty(key)) {
+                if(key.toUpperCase() in urlParams) {
+                    delete allParams[key];
+                }
             }
         }
         paramsString = OpenLayers.Util.getParameterString(allParams);

lib/OpenLayers/Layer/MapGuide.js

@@ -346,8 +346,10 @@ OpenLayers.Layer.MapGuide = OpenLayers.Class(OpenLayers.Layer.Grid, {
         var urlParams = OpenLayers.Util.upperCaseObject(
                             OpenLayers.Util.getParameters(url));
         for(var key in allParams) {
-            if(key.toUpperCase() in urlParams) {
-                delete allParams[key];
+            if (allParams.hasOwnProperty(key)) {
+                if(key.toUpperCase() in urlParams) {
+                    delete allParams[key];
+                }
             }
         }
         var paramsString = OpenLayers.Util.getParameterString(allParams);

lib/OpenLayers/Layer/MapServer.js

@@ -142,8 +142,10 @@ OpenLayers.Layer.MapServer = OpenLayers.Class(OpenLayers.Layer.Grid, {
         var urlParams = OpenLayers.Util.upperCaseObject(
                             OpenLayers.Util.getParameters(url));
         for(var key in allParams) {
-            if(key.toUpperCase() in urlParams) {
-                delete allParams[key];
+            if (allParams.hasOwnProperty(key)) {
+                if(key.toUpperCase() in urlParams) {
+                    delete allParams[key];
+                }
             }
         }
         paramsString = OpenLayers.Util.getParameterString(allParams);

lib/OpenLayers/Layer/Vector.js

@@ -509,8 +509,10 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
             
                 if(!zoomChanged && coordSysUnchanged) {
                     for(var i in this.unrenderedFeatures) {
-                        var feature = this.unrenderedFeatures[i];
-                        this.drawFeature(feature);
+                        if (this.unrenderedFeatures.hasOwnProperty(i)) {
+                            var feature = this.unrenderedFeatures[i];
+                            this.drawFeature(feature);
+                        }
                     }
                 }
             }
@@ -1023,4 +1025,4 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
     },
 
     CLASS_NAME: "OpenLayers.Layer.Vector"
-});
+});

lib/OpenLayers/Layer/WMTS.js

@@ -229,8 +229,10 @@ OpenLayers.Layer.WMTS = OpenLayers.Class(OpenLayers.Layer.Grid, {
             matrixSet: true
         };
         for (var prop in required) {
-            if (!(prop in config)) {
-                throw new Error("Missing property '" + prop + "' in layer configuration.");
+            if (required.hasOwnProperty(prop)) {
+                if (!(prop in config)) {
+                    throw new Error("Missing property '" + prop + "' in layer configuration.");
+                }
             }
         }